- Towards a practical threat assessment methodology for crop landraces. Basically red listing for landraces.
- Preserving traditional systems: Identification of agricultural heritage areas based on agro-biodiversity. First places to apply the above?
- Genetic erosion within the Fabada dry bean market class revealed by high-throughput genotyping. Would have been nice to apply the above before doing this study.
- Restoration of the traditional high-altitude rice variety Dumbja in Bhutan. Highlights one of the problems with monitoring threats to landraces, i.e. how to define the landrace.
- Identifying genetically redundant accessions in the world’s largest cassava collection. About half of over 5000 genebank accessions were unique. Easier to recognize cassava landraces I guess.
- Agricultural commercialisation among women smallholder farmers in Nigeria: Implication for food security. Will commercialization help preserve some landraces but threaten others?
- The groundnut improvement network for Africa (GINA) germplasm collection: a unique genetic resource for breeding and gene discovery. Over a thousand accessions that will be just fine.
- An Appropriate Genetic Approach to Endangered Podolian Grey Cattle in the Context of Preserving Biodiversity and Sustainable Conservation of Genetic Resources. The livestock people monitor threat to breeds all the time, it seems.
Brainfood: CGIAR impacts, Alternative ag, Landscape simplicity, Biocultural diversity, PPP, Bioversity & food security, Landrace legislation, Coffee ABS, Useful plants
- The economic impact of CGIAR-related crop technologies on agricultural productivity in developing countries, 1961–2020. In 2020, modern varieties bred by CGIAR or developed by other institutions using CGIAR germplasm were sown on about 190 M ha, about 26% of the total harvested area of these crops in developing countries, and 43% of the total area sown with modern varieties for these crops in developing countries. Yes, cool, but…
- Farming practices to enhance biodiversity across biomes: a systematic review. Less intensive practices generally enhance biodiversity.
- Effects of landscape simplicity on crop yield: A reanalysis of a global database. Simplifying landscapes is associated with lower rates of pollination, pest control and other ecosystem services, and lower crop yields.
- Biocultural diversity and crop improvement. Crop improvement can enhance crop diversity, but doesn’t always.
- Collaboration between Private and Public Genebanks in Conserving and Using Plant Genetic Resources. Vegetable breeding companies can contribute to the conservation of crop diversity by public genebanks, but it takes work on both sides.
- Eight arguments why biodiversity is important to safeguard food security. It’s not “stop hunger first, then worry about diversity afterward”. Or it shouldn’t be.
- Landrace legislation in the world: status and perspectives with emphasis in EU system. Policy can support the conservation and use of landraces. Or not. It’s a choice.
- Convention on Biological Diversity (CBD) and the Nagoya Protocol: Implications and Compliance Strategies for the Global Coffee Community. Maybe they should consider the Plant Treaty approach?
- The global distribution of plants used by humans. 35,687 of them, and their richness is negatively correlated with protected areas.
Nibbles: Cheese microbes, OSSI, Mung bean, Sustainable ag, Agroecology, Collard greens, African orphan crops, Olive diversity, Mezcal threats, German perry, Spanish tomatoes, N fixation
- A sustainable blue cheese industry needs more microbial diversity.
- The Open Source Seed Initiative gets written up in The Guardian. Looks like we need something similar for cheese microbes.
- The Guardian then follows up with mung bean breeding and fart jokes.
- But then goes all serious with talk of trillions of dollars in benefits from sustainable food systems. Diversity not mentioned, alas, though, so one wonders about the point of the previous pieces.
- Fortunately Indigeneous Colombian farmers have the right idea about sustainability.
- Collard greens breeders do too, for that matter.
- More African native crops hype for Dr Wood to object to. Seriously though, some crops do need more research, if only so they can be grown somewhere else.
- There’s plenty of research — and art for that matter — on the olive, but the international genebanks could do with more recognition.
- The mezcal agave, on the other hand, doesn’t seem to have much diversity in genebanks, and it is threatened in the wild.
- Perry culture in Germany is also threatened. Pretty sure there are genebanks though.
- This piece about tomato diversity in Spain is worth reading for many reasons (heroic seed saving yada yada), but especially for the deadpan take on the Guardia Civil at the end.
- Maybe we could breed some of those tomatoes to fix their own nitrogen. And get the Guardia Civil to pay for it.
Diversifying rotations for climate change adaptation and mitigation
Jeremy’s latest newsletter summarizes a summary of a roundup of rotation research from northern China. Bottom line: more crops better.
Anthropocene Magazine has a handy summary of recent research into crop diversity on the North China Plain. Bottom line: adding more crops to the current dominant rotation of wheat and maize increases yields and profits, sequesters more carbon in the soil and reduces overall greenhouse gas emissions.
The researchers added sweet potato and a legume, like soybeans or peanuts, to the rotation and at the same time reduced the amount of synthetic fertilisers applied to the field. Sweet potato is a cash crop that increased farmers incomes by about 60%. Soybeans and peanuts have a lower impact on incomes (13–22% increase) but more than compensated for lower fertiliser inputs. Not surprisingly, lower nitrogen fertiliser results in lower emissions of nitrous oxide, a greenhouse gas. What was a surprise was an increase in carbon in the soil, perhaps because diverse crops result in more diverse microbial populations which in turn trap atmospheric methane and carbon dioxide.
[D]eveloping and adopting diversified cropping systems should be a key consideration in agricultural policy setting and a top priority for on-farm decision-making.
Projecting the experimental results to the whole of the North China Plain could, the researchers say, increase cereal production by 32% and reduce the need for fertilisers by 3.6 million tonnes. That alone, they say, would reduce China’s greenhouse gas emissions by 6%. And annual farm incomes would increase by 20%.
Nibbles: Genebanks double, Rice landraces, Millet demo, Taro system, EU Seed Law, Food crisis
- Why seedbanks matter.
- But are they hyperlocal?
- Why local rice varieties matter in Bangladesh.
- Why millet matters for climate resilience.
- Why taro matters in Hawaii.
- Why EU seed laws matter.
- Why diversification of food systems matters. Among other things.